For most American women beyond the age of high school gym class, “I’ve got my period” isn’t considered much of an excuse for anything. We’re meant to pop an Advil and get on with things, Red Devil be damned. But in several, mostly East Asian, countries, so-called “menstrual leave” is a legally enshrined right for female workers.

However, as these countries attempt to move toward greater gender equality in the workplace, menstrual leave has come under debate. Do these policies simply further the notion that women are weak, hormonally-addled creatures controlled by their uteri? Or do they encourage more equality by accommodating female workers’ biological demands, much as maternity leave does?